EP 0211103 B1 19890118 - METHOD OF PRODUCING ROAD SURFACING MATERIAL
Title (en)
METHOD OF PRODUCING ROAD SURFACING MATERIAL
Publication
Application
Priority
EP 85112494 A 19851003
Abstract (en)
[origin: EP0211103A1] 1. A process for producing surfacing material for road surfaces and the like, comprising the following features : granular mineral (20) of selected grain sizes is heated ; the heated granular mineral (20) is mixed with an encasing material (21) ; bitumen (22) is added as a binding agent to the granular mineral (20) ; the mineral (20) and the bitumen (22) are mixed in a mixer (9) ; characterized by the following features : the encasing material (21) which is semi-hard to soft at ambient temperature and which already has a tendency to stick at elevated temperature comprises amorphous polyolefins which as copolymers of alpha-olefins with selected monomers have the following parameters : melt viscosity about 8000 mPa s (measured with a rotary viscosimeter at about 190 degrees C), softening point about 105 degrees C (measured with ring and ball in accordance with DIN 52011), penetration 20 (according to DIN 52010), breaking point -30 degrees C (measured in accordance with Fraass, DIN 52012) ; the added amount of the encasing material (21) is about 7% of the total binding agent content of the surfacing material (23).
IPC 1-7
IPC 8 full level
C08L 95/00 (2006.01); E01C 7/18 (2006.01); E01C 19/10 (2006.01)
CPC (source: EP)
C08L 95/00 (2013.01); E01C 7/18 (2013.01); E01C 19/104 (2013.01); E01C 19/1068 (2013.01); E01C 2019/109 (2013.01)
Designated contracting state (EPC)
AT CH DE FR IT LI
DOCDB simple family (publication)
EP 0211103 A1 19870225; EP 0211103 B1 19890118; AT E40166 T1 19890215; DE 3567682 D1 19890223
DOCDB simple family (application)
EP 85112494 A 19851003; AT 85112494 T 19851003; DE 3567682 T 19851003